Re: Upgrading Core Switches Question

Short answer: no - the port numbers on your switches will be different

Longer answer: you can probably make it work by downloading your current switch's configurations, editing them to show the correct port numbers, then uploading those configs to your new switches. This should be done well ahead of time and tested thoroughly in your test environment.

Re: Upgrading Core Switches Question

You can certainly use your old switch configs as a pretty solid foundation. I have done migrations from 5300 switches to new ProCurve switches, and whilst many of the commands will be the same, there will always be some differences. Port ID/numbers are the obvious difference like Paul says.

If you get your new kit in advance, you can preconfigure them using the settings from the existing equipment. It will also be a good opportunity to review the configs and plan to remove unused or obsolete items, entries, etc.